Home / 7,385.50-11,129.20-6,692.14

Finding the Fourth Proportional to 7,385.50, 11,129.20 and 6,692.14

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Solution

The fourth proportional to 7,385.50, 11,129.20 and 6,692.14 is: 10,084.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.50 : 11,129.20 = 6,692.14 : x
  2. Step 2: Convert to fraction form
    7,385.50/11,129.20 = 6,692.14/x
  3. Step 3: Cross multiply
    7,385.50x = 11,129.20 × 6,692.14
  4. Step 4: Simplify right side
    7,385.50x = 74,478,164.49
  5. Step 5: Solve for x
    x = 74,478,164.49/7,385.50
  6. Step 6: Final answer
    x = 10,084.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.